Cohan won numerous awards and sold a lot of copies of his previous book, “The Last Tycoons,” which described the history of investment firm Lazard Fréres, where he worked for six years. Now he sets his sights on Bear Stearns, recounting the firm’s spectacular implosion and introducing us to the larger-than-life jerks who ran the place. Behold as Chairman Jimmy Cayne plays bridge as Rome burns, and his rivalry with Co-President Warren Spector, played out in company-wide memos like overgrown Gossip Girls. Engaging, depressing and sure to one of this year’s must-read business books.